Page 1 of 18
Unitized Structural Body Repair FINAL EXAM PREP
2025/2026 ACCURATE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100% GUARANTEED PASS
<RECENT VERSION>
Unibody .......Answer.........Lightweight stamped sheet metal
components that are welded to each other to create a single unit.
Space Frame .......Answer.........Body panels can be made from
plastic are steel. Steel may be Mild, Intermediate, or HSS. Panels
may hide damage to frame or structure.
Crush Zones .......Answer.........Structural components such as rails
are designed to collapse and bend at specific points.
Collision Energy Management .......Answer.........Goal is passenger
protection. Front and rear structures act as crush-able energy
absorbers.
,Page 2 of 18
Direct Damage .......Answer.........POI. Easily located and
diagnosed.
Indirect Damage .......Answer.........transmission of collision energy
beyond the area of immediate impact. Examples; Split seam
sealers, pulled spot welds, misaligned panels, buckles in steel,
cracked glass, and cracked or chipped paint.
Passive Restraint Systems .......Answer.........Must have service
manual. No two are alike.
Datum .......Answer.........Imaginary plane or line beneath the
vehicle. Measures height.
Centerline .......Answer.........Vertical plane that passes from the
front of the vehicle to the rear. Measures Width. May have
stamped marks on vehicle body structure. Is confirmed by
referencing at last 3 width measurements in the undamaged
portion of the vehicle.
, Page 3 of 18
Zero Planes .......Answer.........Vertical plane that passes from side
to side. Confirmed by measuring 3 length measurements from the
undamaged portion of the vehicle.
Symmetry .......Answer.........Equal on each side of the vehicle.
Asymmetrical .......Answer.........Unequal on each side of the
vehicle. (spare tire well)
Reference Points .......Answer.........Bolts or nuts, Holes, Mechanical
attachment points, Edges of panels, Door strikers, Corner of
openings. Common tolerance is =/.3mm (1/8) or all the way to
1mm (1.32).
Loaded Measurements .......Answer.........Drivetrain In
Unloaded Measurements .......Answer.........Drivetrain out
Point to Point Measurements .......Answer.........shortest distance
between 2 reference points. AKA "as the crow flies". Uses tram
or steel tape measure.
Unitized Structural Body Repair FINAL EXAM PREP
2025/2026 ACCURATE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100% GUARANTEED PASS
<RECENT VERSION>
Unibody .......Answer.........Lightweight stamped sheet metal
components that are welded to each other to create a single unit.
Space Frame .......Answer.........Body panels can be made from
plastic are steel. Steel may be Mild, Intermediate, or HSS. Panels
may hide damage to frame or structure.
Crush Zones .......Answer.........Structural components such as rails
are designed to collapse and bend at specific points.
Collision Energy Management .......Answer.........Goal is passenger
protection. Front and rear structures act as crush-able energy
absorbers.
,Page 2 of 18
Direct Damage .......Answer.........POI. Easily located and
diagnosed.
Indirect Damage .......Answer.........transmission of collision energy
beyond the area of immediate impact. Examples; Split seam
sealers, pulled spot welds, misaligned panels, buckles in steel,
cracked glass, and cracked or chipped paint.
Passive Restraint Systems .......Answer.........Must have service
manual. No two are alike.
Datum .......Answer.........Imaginary plane or line beneath the
vehicle. Measures height.
Centerline .......Answer.........Vertical plane that passes from the
front of the vehicle to the rear. Measures Width. May have
stamped marks on vehicle body structure. Is confirmed by
referencing at last 3 width measurements in the undamaged
portion of the vehicle.
, Page 3 of 18
Zero Planes .......Answer.........Vertical plane that passes from side
to side. Confirmed by measuring 3 length measurements from the
undamaged portion of the vehicle.
Symmetry .......Answer.........Equal on each side of the vehicle.
Asymmetrical .......Answer.........Unequal on each side of the
vehicle. (spare tire well)
Reference Points .......Answer.........Bolts or nuts, Holes, Mechanical
attachment points, Edges of panels, Door strikers, Corner of
openings. Common tolerance is =/.3mm (1/8) or all the way to
1mm (1.32).
Loaded Measurements .......Answer.........Drivetrain In
Unloaded Measurements .......Answer.........Drivetrain out
Point to Point Measurements .......Answer.........shortest distance
between 2 reference points. AKA "as the crow flies". Uses tram
or steel tape measure.
